Machine for cutting oil grooves and the like



Feb. 7, 1928?'v R. F. WATSON MACHINE FOR CUTTING OIL. GROOVES AND' THE LIKE Filed Nov, 6, 1925 spondiiig with the showing of Fig. 1.

3 is aperspective view of a detailY of the.

Patented Feb. 7, 1928.

:1U NIT'ED s'rA g 1,658,470 PATENT 'oi-Fic y :ROBERT r. WATSON, or EASTnonninsnoox,Y NEW JERSEY; AssrGNoR Tor WATSON BROTHERS MACHINE' COMPANY, INCORPORATED, or iiasT: Bo'unnnaoox, NEW JER- SEY, A CORPORATION OF NEW JERSEY.

MACHINE non CUTTING-011. Gnoovns lann Tru: 1.11m:k i

. Appncation fiiea November e; i925. semi No. 67,2474. i.

This invention relates to machines for cutting oil grooves and the like and has for its-object to provide a machine` of the class specified, of simple constructionand easily ladaptable to various ytypes of grooving.

With these ends, in view my improvements comprise features illustrated in their preferred embodiment in the drawing accompanying this specification, wherein Figure 11s a 'sectional elevation on line 1-1 of Fig.v 2. Fig. 2 is a plan view,partl in section on line 2-2 of Fif. 1, corremachine. Theseveral views are toone scale.

My improved machine is .particularly useful for cutting channels ot-any desired pattern, preferably endless, on the inside of a hollow bearing 'or on the outside of the bearing portion ofv a shaft; lt will be obvious to those skilled in the art thatother similar uses, such for instance as cutting' cams, fall within the soope of said machine.

Referring now more particularly to the drawing, rotatable spindle 3, having bearings infhead 4 fixed to bed 5 Ymay be iitted with the usual chuck 6 and pulley 7'. Facing chuck 6 is tool-carriage 8, mountedfor movement lengthwise bed 5, and having slide 9 mounted for transverse movement thereon by means of screw 10, all'as well known iii the art. Tool-holder 11, preferably a cylindrical rod, is adjustably fixed in the upper part of slide 9 at aboutthe height ofspindle 3 and preferably in parallelism therewith. Cutting tool 12 is removably secured in the left hand end of said holder 11.

For causing carriage 8 to traverse back and forth on bed 5 the following means are provided: Mounted for movement lengthwise bed 5 is slide 13 having pin 14 vertically adjustable therein forengagement with spindle 3, and at the other end on seat-19 of cam head 20. Said head Q0 is removable for the releasing of cam 16 by unscrewing nut 21 in threaded engagement with the left-hand end of, spindle' 3. For causing cam 16 to be rotated by spindle 3, clutch 22 t-ated therewith.

'is slidably kcyed'to'fspindle 3 within said cam and is providedwith diametially opposite' elutchteeth 23, 24ffor engagement with similar 'teef/h, iis-25, on the rear face of head18. Said clutch'QfZ V is urged toward head 18 by spring 26. By this means when spindle `3 is rotated forwardly, in the direction of the arrow on chuck 6, cam 16 is` ro-V are rotated forwardlyy the` engagementzof pin 14 of slide 13 in @am groove` k15 will As spindle 3 and cam 16 cause said slide to traverse Lback and forthV in its-guideway in bed. 5 parallel with spindle 3. --For transmitting movement from slide-13:; tot-oolcarriage 8 and tooly 12,11 second slide 27, mounted for movement in bed 5 below and parallel with slide 13 is provided. This slide 27 adjustably connectedV with carriage 8 by meansfof long screw 28, mounted' for rotation but held against endwise movement in ear 29 of slide 27. Said screw isin threaded engagement with ear 30 of carriage8 and may be releasably `secured against turning therein by lock nut 31. Pivoted for slight `endwise movement at 32 in eai 33, extending rearwardly from bed 5, is arm 34 and said arm is also pivoted at 35 in slide 13. Mounted for rotation, but held against endwise movement in'said arm 34, isscrew 36 in threaded engagement with nut 37. Said nut is provided with head 38 slidable in a suitable guideway insaid arm. Said nut 37 has acylindrical body on which is pivoted one end of link 39, .y

the other end of said link being pivoted at 40 to y.slide 27. By means of head 41, screw 36 may be rotated to move nut 37 toward and from pivot 32, whereby the movement of slide 13 may be transmitted to slide 27 in varying amounts as desired, thereby changing the amountof travel of carriage 8 andy tool 12. By means of clutch 22, cam 16 may be given a halfV rotation vwhen desired so as to enable tool 19. to cut a second groove in the work in chuck 6, 180 degrees from the first groove. .Cam 16, by the removal of nut21, may be removed from spindle` 3 and scription of its construction.

I claim: 1, In a machine of the character described a cam having any other desired patte-rnof the combination oi a rotatable work-holding spindle, a tool-carriage mounted for movement toward and from the Work-holding end of said spindle, a tool on said carriage, a cylindricalI rcam mounted on said spindle, a slide mounted `for movement adjacent said cam in parallelism with said spindle, means i operatively connecting said camwand slide,

a second slide mounted for movement in parallelism with said spindle adjacent said first mentioned slide, means for transmitting motion` fromsaid first slide to said ing end of said spindle, av tool on said carriage, a cylindrical cam rotatably mounted on said spindle, a clutch slidably keyed to said shaft, meansk on said cam for engaging said clutch, spring means for urging said clutch to such engagement, a slide mounted for movement adjacent said cam in parallelism with said spindle, means operatively connecting said cam and slide, a second slide mounted for movement in parallelism With said spindle adjacent said first mentioned slide, means for` transmitting motion from said 'first slide to saidsecond slide, means for modifying the amount of motion thus transmitted including an arm pivoted at a point remote from said first mentioned slide, means opel-ably connecting said arm and slide, a link connecting said second slide and said arm, and means for shifting the point of connection of said link and second slide toward and from the pivotal point of said arm. n i

In Witness whereof, I hereby aix my nature this 4th day of November, 19525.

ROBERT FQ l/VATSON. 

